ARDX (NASDAQ: ARDX) Form 144 lists RSU vesting and proposed sales

Rhea-AI Filing Summary

ARDX submitted a Form 144 reporting proposed sales of Common Stock. The filing lists 11,800 shares, notes 24,986 shares tied to the vesting of restricted stock units on 02/19/2026, and discloses a prior sale of 5,560 shares on 11/21/2025.

Insights

Securities Compliance Counsel

Form 144 lists proposed brokered sales and RSU vesting; review Rule 144 conditions.

The filing names Morgan Stanley Smith Barney LLC as the broker-dealer and records 24,986 shares linked to restricted stock unit vesting on 02/19/2026. It also lists 11,800 shares in a securities section and a prior sale of 5,560 shares on 11/21/2025.

Rule 144 eligibility (holding period, current public information, volume limitations) will govern any permitted sale; subsequent documents or broker confirmations will show execution details.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza, 8th Floor New York NY 10004	11800	67614.00	245247427	02/20/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	02/19/2026	Vesting of restricted stock units	Issuer			24986	02/19/2026	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Mike Kelliher 400 Fifth Avenue, Suite 210 Waltham MA 02451	Common Stock	11/21/2025	5560	30785.16

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does ARDX's Form 144 report?

It reports proposed sales of common stock. The filing lists 11,800 shares and 24,986 shares tied to RSU vesting on 02/19/2026, plus a prior sale of 5,560 shares on 11/21/2025.

Who is the broker/dealer listed on ARDX's Form 144?

Morgan Stanley Smith Barney LLC is named as the broker-dealer. The filing gives the firm’s address as 1 New York Plaza, 8th Floor, New York, NY and associates it with the securities to be sold.

What caused the additional shares in the filing to be reportable?

The filing cites vesting of restricted stock units. It records 24,986 shares tied to RSU vesting on 02/19/2026 with the stated reason "Services Rendered."

Does the Form 144 show recent prior sales by the holder?

Yes, it discloses a sale of 5,560 shares. The listed prior sale occurred on 11/21/2025 for an amount labeled 30,785.16 in the filing excerpt.